Improvement in raking attachments for harvesting-machines



UNITED STryrEs V'PATENT OFFICE.

GEORGE TATLooK, oE SALEM, iNDiANA.

IMPROVM'ENT lN RAKING ATTACHMENTS FOR HARVESTlNG-MACHINES.

To all whom it may concern:

Be it knownjthat I, GEORGE TATLocK, of Salem,'in-the county of Washington and State of Indiana, have invented a new and Improved Raking Attachment for Harvesters; and I do hereby declare that thefollowingis a full, clear, and exact description of the same, reference being had to the annexed drawings, makinga y part of this specification, in which- LFigure l is a front view of myinvention applled to the platform of a harvester; Fig. 2, a side viewof the same; Fig. 3, a plan or top view of the same;

Similar letters of reference indicate corre- Y sponding parts in the several figures.

This invention relates to an improvementin that class of raking devices in which a rakehead is made to traverse over the platform inl a direction parallel with the sickle, or at right angles with the line of draft. The object of the invention is to give the abovedescribed movement to the rake-head, and also the necessary rising-andfalling movement ofthe same at the terminationof its strokes by avery simple means. They may be readily applied to harvesters, and admit of being very directly connected to the driving-wheel.

To enable those skilled in the art to fully understand and construct myinvention, I will proceed to describe it.

A represents the platform of aharvester, on the upper surface of which a series of parallel strips or bars, a, are secured at equal distances apart, the spaces'between the bars being sutticiently wide to receive the lower ends of th rake-teeth. i

'lo the back part ofthe platform A two parallel bars, B B are placed, one being over the other in the same vertical plane, as shown in Fig. 1, and having' a sliding bar, C, fitted thereon. `In the upper end of this bar C a rake-head, D, is fitted and secured by a pivot, b, the rake-head being allowed to work freely on the pivot.

To'the rake-head D, at a point quite near to the bar G, an arm, E, is attached bya pivot, c. This arm E is fitted in a loop or guide, d, attached to the bar C, said loop bein g sufficiently large to admit of a certain degree of play `of the arm, which has a spring, e, attached to its back side, said spring having a tendency to keep the lower part of the arm thrown outward from the bar C. In the outer surface of Y the arm E a notch is made to form a step-like projection,f, which, when the rake-head is elevated, as shown in black in Fig. 2, rests on the loop or guide d, said projection j' serving as a support for the rake-head when the latter is elevated. This will be clearly understood by referring to Fig. 2.

At the outer side of the platform A there is a horizontal curved or slightly-oblique bar or arm, g, which is attached to an upright, h, to which one end of the bars B B are also attached, and to the inner or opposite side of the platform a bar or. arm, t', is attached, said bar or arm being slightly inclined, as shown in Fig. l. In the back side of the bar O a vertical slot is made to receive the pin j at the end of an arm, k, which is attached to one end of a shaft, l, having its bearing m on the upper part of a frame, n, which is attached to the platform A.

To the opposite end ot' this shaft Z an arm, o, is attached, the lower end of which is attached to a connecting-mdd?, which is driven by a crank, q, from a shaft, r. The connecting-rod p is attached to the lower part of the arm 0 by a bolt, o', that passes through an oblong slot in said arm. By attaching the rod p higher or lower to the arm o the length of movement or stroke of the rake-head may be regulated asv desired.

To the bar C a horizontal rod,s, is attached, said rod passing through the curve or bend t, that connects the two bars B B. The rod s serves as a guide, and insures an easy movement of the bar C.

The operation is as follows: The shaft r is connected with the driving-wheel of the harvester by a simple bevel-gearingfand as the harvester is drawn'along a rotary motion is given the shaft r, and an oscillating-movement is communicated from shaft r to shaft Zby the connecting-rod p and arm o. The arm 7c of shaft l gives a reciprocating movement to the bar C, and consequently to the rake-head D,

the pinj of arm k working up and down in the slot in the `back of the bar U. Each time the rake-head D reaches the inner side of the platform A the rake-head is raised, in consequence of the lower end of the arm E passing up the inclined bar or arm i, and when said arm is at a certain height its spring e will thrust the projection f over the loop or guide d, and the rakehead will be supported in an elevated position,

as shown in black, Fig. 2, While moving to the outer side of the platform, and when it reaches the outer side the bar or arm g throws inward the arm E, and thereby frees the projection j' from'the loop or guide d, and the rake-head descends by its own gravity, its teeth a* resting on the platform between the bars a, and as the rake is moved toward the inner side of the platform it rakes the cut grain therefrom and discharges it on the ground between the platform and the main frame of the machine. When the rake-head reaches the inner side of the platform it, as before stated, is raised, in consequence of the bar D passing up the inclined bar or arm t', and as the' rake-head moves to the outer side of the platform in an elevated state the platform receives the cut grain, that is raked off from it, as before, during the succeeding movement of the rake-head to the inner side of the platform.

This invention, it will be seen, is extremely simple. The rake-head has a positive reciproeating motion given it by the employment of a very few parts, and the rising-and-falling movement is effected by an extremely simple arrangement. There are no parts liable to become deranged by use, and none that cannot be readily repaired when necessary.

I do not claim broadly, irrespective of construction and arrangement, as herein shown and described, the employment or use of a reciprocating rake-head,for they have been used and operated in various ways; bnt

I do claim as new and desire to secure by Letters Patent- Operating the rake-head D, which is pivoted to the sliding bar C, through the medium of the rotating shaft r, connecting-rod p, and rockshaft I, connected respectively with the rod p and sliding bar U'by the arms 7c o,in connection with the arm, E attached tothe rakehead, the loop or guide d, attached to the arm E, and the bars or arms gi, attached to the platform, the whole being arranged substantially as and for the purpose set forth.

GEORGE TATLOGK.

Witnesses:

J. P. BANTA, WiLL A. M. YOUNG. 

